(3y^2-4y)-(5y^2-4y+9)=

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Solution for (3y^2-4y)-(5y^2-4y+9)= equation:


Simplifying
(3y2 + -4y) + -1(5y2 + -4y + 9) = 0

Reorder the terms:
(-4y + 3y2) + -1(5y2 + -4y + 9) = 0

Remove parenthesis around (-4y + 3y2)
-4y + 3y2 + -1(5y2 + -4y + 9) = 0

Reorder the terms:
-4y + 3y2 + -1(9 + -4y + 5y2) = 0
-4y + 3y2 + (9 * -1 + -4y * -1 + 5y2 * -1) = 0
-4y + 3y2 + (-9 + 4y + -5y2) = 0

Reorder the terms:
-9 + -4y + 4y + 3y2 + -5y2 = 0

Combine like terms: -4y + 4y = 0
-9 + 0 + 3y2 + -5y2 = 0
-9 + 3y2 + -5y2 = 0

Combine like terms: 3y2 + -5y2 = -2y2
-9 + -2y2 = 0

Solving
-9 + -2y2 = 0

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '9' to each side of the equation.
-9 + 9 + -2y2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -2y2 = 0 + 9
-2y2 = 0 + 9

Combine like terms: 0 + 9 = 9
-2y2 = 9

Divide each side by '-2'.
y2 = -4.5

Simplifying
y2 = -4.5

Reorder the terms:
4.5 + y2 = -4.5 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
4.5 + y2 = 0.0

The solution to this equation could not be determined.

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